Uvilda, Dean of Perfection | Legendary Creature | Djinn Wizard | {T}: You may exile an instant or sorcery card from your hand and put three hone counters on it. It gains "At the beginning of your upkeep, if this card is exiled, remove a hone counter from it" and "When the last hone counter is removed from this card, if it's exiled, you may cast it. It costs {4} less to cast this way." | Jason Rainville
4.5 LSV
Dream Strix | Creature | Bird Illusion | Flying
When Dream Strix becomes the target of a spell, sacrifice it.
When Dream Strix dies, learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.) | YW Tang
3.5 LSV
Codie, Vociferous Codex | Legendary Artifact Creature | Construct | You can't cast permanent spells.
{4}, {T}: Add {W}{U}{B}{R}{G}. When you cast your next spell this turn, exile cards from the top of your library until you exile an instant or sorcery card with lesser mana value. Until end of turn, you may cast that card without paying its mana cost. Put each other card exiled this way on the bottom of your library in a random order. | Daniel Ljunggren
2.5 LSV